Belt conveyer for transporting sand, gravel, &amp;c.



No. 722.;504. PATENTEI} MAR. 24, 1903;

J. & w. TITUS.

BELT GONVEYER FOR TRANSPORTING SAND, GRAVEL, 65 0 APPLIOAIION FILED JULY 31, 1002.

H0 MODEL.

WITNESSES: INVENTOBS ATTORNEY invention.

' UNITED STATES PATENT OFFICE.

.IoIIN TITUS, or" OYSTER BAY,'AND WILLIAM Trrus, or OLD wEsTBUnY,

NEW YORK.

BELT CONVEYER. FOR TRA'NSPORTING SAND, GRAVEL, etc.

SPECIFICATION forming part of Letters Patent No. 723,504, dated March 24, 1903. Application filed July 31,1902. Serial No. 117,702. (No model.)

To all whom it may concern:

Be it known that we, JOHN TITUS, a resident of Oyster Bay, and WILLIAM Trrus, a resident of Old Westbury, in the township of North Hempstead, in the county of Nassau, in the State of New York, citizens of the United States, have jointly invented a new and useful Improvement in Belt Conveyers forTransporting Sand, Gravel, &c.; and we do hereby declare that the following is a f nll, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure 1 is a side view and partial sectional view of an apparatus made according to our Fig. 2 is a plan View of the same. This invention relates to that class of conveying mechanisms com monly known as belt conveyors, in which an endlessbelt or apron is supported on drums or rollers and by its revolutions carries material deposited thereon from one part of the apparatus to another,

ordinarily to an end of the apparatus, from which it is automatically dropped as the belt passes over an end roller. of the machine. It is necessary to the more advantageous use of such apparatus that the upper or carrying part of the belt shall as nearly as practicable. be kept taut, -and to secure this that the belt shall be drawn by the roller at the delivery 'end of the apparatus instead of, so to speak,

being pushed by the roller at the opposite or receiving end of the apparatus. In practice, however-Pas, forexample, in loading material from the apparatus into or upona ship or other craft-it is necessary that the. deliv-, ery end of the apparatus be thrust outward over space, or, in other words, suspended at considerable distance from where, under the circumstances, the driving power is necessarily applied. In such instances it has heretofore been found unpracticable to secure the requisite draft or'longitudinal tension upon the upper or working portion of the belt.

The object of our invention is to meet this difliculty; and to this end our said-invention consists" in a novel combination of mechanical devices whereby said object is effectually secured.-

In practicethe working parts hereinafter described are 7 supported upon a suitable frame; but as the making and structure of frames for similar purposes is well understood in the mechanic arts it is not thought necessary to describe the same in detail-or to illustrate said frame in the drawings.

A is the endless carrier apron or belt, which is supported upon the suitable end rollers 15 and C, and the upper or burden-bearing portion of which, as from to to b, is supported along its length in the ordinary manner by transversely-arranged rolls 0. For the purposes of this description the roller B may be regarded as at the receiving end of the apparatusand the roller 0 as at the delivery end thereof. The belt A is of such length and proportions as to afford a loop D and a fold g, the purpose of which is herein presently explained. 1

Provided between the upper or burdenbearing part a b of the belt A, as shown in Fig. 1, is a guide E, which is more or less horizontal-in other words, longitudinal with the direction of the belt. In this guide works a sliding carriage F. Suitably journaled in this slide is a roller G, the position of which is transverse to the length of the belt, the movementof the slide in the guide being substantially parallel with the belt. Parallel with the roller G is a drivingroll H, supported in suitable fixed journal-boxes and which have fast upon a projecting end of its may I, to which motion may be shaft a pulley given from any suitable source of power.

at the right-hand portion of the two figures of the drawings. The return fold g from the loop-D of the belt is passed over the driveroll H, as shown in Fig. 1. It will -be observed that the traction exerted by the weights e tends to draw the belt snugly in contact with the drive-rollH to secure adhesion thereto, also that the belt from the roll 0 at the delivery end of the apparatus runs direct to the under side of the drive-roll H, that the latter rotates in the direction of the arrow in Fig. l, and that as the belt leaves the upper side of the drive-roll the tension upon that The loop D of the belt is passed over the roller G ICO part of thebelt is due to the resisting pull of chine.

the adjacent part of the belt as it passes over the roller 1 at the receiving end. of the ma As the power is applied to the upper or burden-beariug part a of the belt primarily at I, (its delivery end,) it follows that said part of the belt is drawn as taut as possible and with the same result as if the power were applied directly to the roller C to operate the latter as a driving-roller of the belt. Inasmuch as the actual driving-pulley is.in our invention the-roll II in the fold g of the belt and as said roll is remote from the delivery end of the apparatus, it follows that said delivery end may be thrust over the deck of a v vesselor over any other desired place of deposit without in any way interfering with the advantageous draft upon the belt. I.

\Vhat we claim as our invention is An organized machine for transporting sand, gravel, and the like comprising in combination the elements following, to wit: an endless carrier-belt. proportioned to provide a loop and a reverse fold in its lower part, rolls at the receiving and delivery ends of the machine for supporting the said belt, a fixed tion of the belt, and parallel with the belt, a

parallel with the belt-supporting rolls and carried by the sliding carriage, adriving-roll remote from the delivery end of the machine and parallel with the idler-roll with the lower part of the belt looped around the idler-roll with a reverse foldpassed around the driving-roll and means for retracting the idlerroll against the loop to take up the slack of the belt as it leaves the drivingroll, all substantiall y as described with the efiee't set forth.

JOHN TITUS. \VILLIAM TITUS.

GE'o. R. HALL.

sliding carriage in'said guide, an idler-roll 25 guide below the upper or burden-bearing por- 

